4AD

Acid house is a subgenre of house music defined by the squelching, resonant basslines of the Roland TB-303 and the stark, machine-driven grooves of classic drum machines like the TR-808 and TR-909. It typically runs around 120–130 BPM, features a four-on-the-floor kick, offbeat hi-hats, and minimal, hypnotic arrangements designed for extended club mixing. Emerging in mid-1980s Chicago, acid house became synonymous with underground warehouse culture and later the UK’s “Second Summer of Love” (1988–1989). Its iconic smiley imagery, trance-inducing filter sweeps, and endlessly evolving 16-step sequences established a sonic and visual language that reshaped dance music across Europe and beyond.

Alternative rock is a broad umbrella for guitar-based rock that emerged from the independent and college-radio scenes as a counterpoint to mainstream, commercial rock. It blends the energy and ethos of punk with the textural and songwriting experiments of post-punk, new wave, jangle pop, and noise rock, often foregrounding introspective or socially aware lyrics. Across its many strains—from the melodic minimalism of college rock to the loud-quiet-loud dynamics of grunge and the artful experimentation of Radiohead-era modernism—alternative rock prioritizes authenticity, sonic individuality, and a do-it-yourself approach. Its sound ranges from chiming, chorus-laden clean guitars to abrasive distortion and feedback, supported by straightforward rock rhythms or off-kilter grooves, and production that can be either raw and live-sounding or polished yet unconventional.

Leftfield is a broad umbrella term for experimental, boundary‑pushing electronic and dance music that sits to the "left" of the mainstream. Rather than adhering to standard club formulas, it privileges adventurous sound design, unexpected rhythms, and collage‑like production choices. While the term is sometimes used loosely, in practice it refers to a UK‑rooted sensibility that blends elements of house, techno, ambient, dub, breakbeat, and hip‑hop into unconventional forms. Leftfield music often emphasizes texture and atmosphere, favors asymmetry over predictable drops, and prizes originality over genre purity.

Ethereal wave is a branch of post-punk/gothic-adjacent alternative music defined by shimmering, reverb-saturated textures, airborne vocal delivery, and a strong emphasis on atmosphere over aggression. It often features chorus- or delay-drenched guitars that blur into pad-like harmonies, minimal or programmed percussion, and bass lines that drift rather than drive. Vocals—frequently female-led—tend toward breathy, angelic timbres, melismatic phrasing, non-lexical vocalise, and poetic or impressionistic lyrics. Harmonies favor modal or diatonic palettes with suspensions and added tones (sus2, sus4, add9), producing a weightless, bittersweet feel. The overall production aesthetic, popularized by 4AD acts, evokes a dreamlike, otherworldly space that can lean medieval, ambient, or neoclassical depending on the artist.

Gothic rock is a dark, atmospheric branch of post-punk that emphasizes brooding moods, melodic basslines, baritone or icy vocal deliveries, and guitar textures drenched in chorus, delay, and reverb. Its lyrics often explore themes of romanticism, existential dread, night, mysticism, and decay, drawing on Gothic literature and cinema as much as rock tradition. Sonically, it blends the stark rhythms and minimalism of post-punk with the theatricality of glam and the textural experimentation of art and psychedelic rock. Drum machines or tightly metronomic drumming underpin prominent, melodic bass figures, while guitars shimmer or scrape with chorus/flanger effects. The result is danceable yet somber music that feels both dramatic and introspective.

House is a dance music genre that emerged in Chicago in the early 1980s, defined by a steady four-on-the-floor kick drum, off-beat hi-hats, soulful or hypnotic vocals, and groove-centric basslines. Typical tempos range from 118–130 BPM, and tracks are structured in DJ-friendly 16–32 bar phrases designed for seamless mixing. Drawing on disco’s celebratory spirit, electro-funk’s drum-machine rigor, and Italo/Hi-NRG’s synth-led sheen, house prioritizes repetition, tension-and-release, and communal energy on the dancefloor. Its sound palette often includes 808/909 drums, sampled or replayed disco/funk elements, filtered loops, piano/organ stabs, and warm, jazzy chords. Over time, house diversified into many substyles—deep house, acid house, French house, tech house, progressive house, and more—yet it remains a global foundation of club culture, known for emphasizing groove, inclusivity, and euphoria.

Neoclassical dark wave is a subgenre of dark wave that fuses the somber atmospheres of gothic-leaning post-punk with orchestral and early-music aesthetics. It favors minor-key harmonies, liturgical or poetic vocals, and dramatic, cinematic arrangements. Typical sound palettes include strings, choirs, piano, organ, and timpani alongside ambient textures and spacious reverbs. Tempos are often slow to moderate, with processional rhythms and modal writing (Aeolian, Dorian, Phrygian) that evoke medieval, Renaissance, or Baroque sensibilities. Vocals often sit in the “heavenly voices” tradition—ethereal sopranos or solemn baritones—singing in English, Latin, or other European languages. The result is music that feels sacred, melancholic, and epic, balancing intimate chamber music colors with vast, cathedral-like ambience.

Post-punk is a broadly experimental strain of rock that emerged in the late 1970s as artists sought to push beyond the speed, simplicity, and orthodoxy of first-wave punk. It typically features angular, bass-forward grooves; jagged or minimal guitar lines; stark, spacious production; and an openness to dub, funk, electronic, and avant-garde ideas. Lyrics often examine alienation, urban decay, politics, and the inner life with artful or abstract delivery. A studio-as-instrument approach, emphasis on rhythm section interplay, and an appetite for non-rock textures (tape effects, drum machines, found sound, synths) distinguish the style. The result can be danceable yet tense, cerebral yet visceral, and emotionally restrained yet intensely expressive.

Punk is a fast, abrasive, and minimalist form of rock music built around short songs, stripped-down instrumentation, and confrontational, anti-establishment lyrics. It emphasizes DIY ethics, raw energy, and immediacy over virtuosity, often featuring distorted guitars, shouted or sneered vocals, and simple, catchy melodies. Typical songs run 1–3 minutes, sit around 140–200 BPM, use power chords and basic progressions (often I–IV–V), and favor live, unpolished production. Beyond sound, punk is a cultural movement encompassing zines, independent labels, political activism, and a fashion vocabulary of ripped clothes, leather, and safety pins.

Rock is a broad family of popular music centered on amplified instruments, a strong backbeat, and song forms that foreground riffs, choruses, and anthemic hooks. Emerging from mid‑20th‑century American styles like rhythm & blues, country, and gospel-inflected rock and roll, rock quickly expanded in scope—absorbing folk, blues, and psychedelic ideas—while shaping global youth culture. Core sonic markers include electric guitar (often overdriven), electric bass, drum kit emphasizing beats 2 and 4, and emotive lead vocals. Rock songs commonly use verse–chorus structures, blues-derived harmony, and memorable melodic motifs, ranging from intimate ballads to high‑energy, stadium‑sized performances.

Alternative is an umbrella term for non-mainstream popular music that grew out of independent and college-radio scenes. It emphasizes artistic autonomy, eclectic influences, and a willingness to subvert commercial formulas. Sonically, alternative often blends the raw immediacy of punk with the mood and texture of post-punk and new wave, adding elements from folk, noise, garage, and experimental rock. While guitars, bass, and drums are typical, production ranges from lo-fi to stadium-ready, and lyrics tend toward introspection, social critique, or surreal storytelling. Over time, “alternative” became both a cultural stance and a market category, spawning numerous substyles (alternative rock, alternative hip hop, alternative pop, etc.) and moving from underground circuits to mainstream prominence in the 1990s.